:root {
            --bg: #05080c;
            --bg-elev: #0b1218;
            --card: rgba(8, 16, 22, 0.92);
            --text: #e8f7f3;
            --muted: #93ada8;
            --dim: #6d8884;
            --emerald: #2ee6a6;
            --emerald-2: #14c98a;
            --cyan: #3ee0f0;
            --ink: #04140e;
            --rose: #ff5d73;
            --amber: #f5c16c;
            --line: rgba(46, 230, 166, 0.16);
            --line-strong: rgba(62, 224, 240, 0.42);
            --shadow: 0 18px 50px rgba(0, 0, 0, 0.38);
            --mono: Consolas, "Cascadia Mono", "Sarasa Mono SC", monospace;
            --sans: "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
            --nav-h: 68px;
            --max: 1120px;
        }

        *, *::before, *::after { box-sizing: border-box; }
        [hidden] { display: none !important; }

        html { scroll-behavior: smooth; }
        body {
            margin: 0;
            min-height: 100vh;
            color: var(--text);
            font-family: var(--sans);
            background-color: var(--bg);
            background-image:
                radial-gradient(ellipse 80% 50% at 10% -10%, rgba(46, 230, 166, 0.16), transparent 55%),
                radial-gradient(ellipse 60% 40% at 100% 0%, rgba(62, 224, 240, 0.12), transparent 50%),
                linear-gradient(rgba(46, 230, 166, 0.035) 1px, transparent 1px),
                linear-gradient(90deg, rgba(62, 224, 240, 0.035) 1px, transparent 1px);
            background-size: auto, auto, 52px 52px, 52px 52px;
            line-height: 1.6;
        }

        ::selection { background: rgba(46, 230, 166, 0.35); color: #fff; }
        :focus-visible { outline: 2px solid var(--cyan); outline-offset: 3px; }
        img, svg, iframe { max-width: 100%; }

        a { color: var(--cyan); }
        p { margin: 0; }

        .skip {
            position: absolute;
            left: 12px;
            top: -48px;
            z-index: 50;
            background: var(--emerald);
            color: var(--ink);
            padding: 8px 12px;
            border-radius: 8px;
            font-weight: 700;
        }
        .skip:focus { top: 12px; }

        .wrap {
            width: min(var(--max), calc(100% - 32px));
            margin: 0 auto;
        }

        .nav {
            position: sticky;
            top: 0;
            z-index: 30;
            height: var(--nav-h);
            display: flex;
            align-items: center;
            backdrop-filter: blur(16px);
            background: rgba(5, 8, 12, 0.82);
            border-bottom: 1px solid var(--line);
        }
        .nav-inner {
            width: min(var(--max), calc(100% - 32px));
            margin: 0 auto;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
        }
        .brand {
            display: flex;
            align-items: center;
            gap: 10px;
            color: inherit;
            text-decoration: none;
            min-width: 0;
        }
        .brand-mark {
            width: 36px;
            height: 36px;
            flex: none;
            display: grid;
            place-items: center;
            border-radius: 10px;
            border: 1px solid var(--line-strong);
            background: rgba(46, 230, 166, 0.08);
            color: var(--emerald);
            box-shadow: 0 0 18px rgba(46, 230, 166, 0.25);
        }
        .brand strong { display: block; font-size: 14px; letter-spacing: 0.01em; }
        .brand small {
            display: block;
            color: var(--cyan);
            font-family: var(--mono);
            font-size: 11px;
            letter-spacing: 0.08em;
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 4px;
        }
        .nav-links a {
            color: var(--muted);
            text-decoration: none;
            font-size: 13px;
            padding: 8px 10px;
            border-radius: 8px;
        }
        .nav-links a:hover { color: var(--text); background: rgba(62, 224, 240, 0.06); }
        .nav-tools { display: flex; align-items: center; gap: 8px; flex: none; }
        .lang-switch { display: flex; align-items: center; }
            .lang-switch select {
            min-height: 40px;
            max-width: min(190px, 46vw);
            border-radius: 10px;
            border: 1px solid var(--line-strong);
            background: rgba(8, 16, 22, 0.92);
            color: var(--text);
            font: inherit;
            font-size: 13px;
            padding: 6px 8px;
        }
        .nav-toggle {
            display: none;
            width: 44px;
            height: 44px;
            border-radius: 10px;
            border: 1px solid var(--line);
            background: transparent;
            color: var(--text);
            cursor: pointer;
        }
        .nav-toggle .burger,
        .nav-toggle .burger::before,
        .nav-toggle .burger::after {
            display: block;
            width: 18px;
            height: 2px;
            background: var(--emerald);
            position: relative;
        }
        .nav-toggle .burger::before,
        .nav-toggle .burger::after {
            content: "";
            position: absolute;
            left: 0;
        }
        .nav-toggle .burger::before { top: -6px; }
        .nav-toggle .burger::after { top: 6px; }
        .sr {
            position: absolute;
            width: 1px;
            height: 1px;
            padding: 0;
            margin: -1px;
            overflow: hidden;
            clip: rect(0, 0, 0, 0);
            white-space: nowrap;
            border: 0;
        }

        .hero {
            position: relative;
            padding: 72px 0 48px;
            background-color: #05080c;
            background-image:
                linear-gradient(180deg, rgba(5, 8, 12, 0.18) 0%, rgba(5, 8, 12, 0.08) 62%, rgba(5, 8, 12, 0.82) 100%),
                linear-gradient(90deg, rgba(5, 8, 12, 0.72) 0%, rgba(5, 8, 12, 0.38) 48%, rgba(5, 8, 12, 0.22) 100%),
                url("img/image-1.png");
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
        }
        .hero-grid {
            display: grid;
            grid-template-columns: minmax(0, 1.25fr) minmax(280px, 0.75fr);
            gap: 40px;
            align-items: center;
        }
        .kicker {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            margin: 0 0 16px;
            color: var(--emerald);
            font-family: var(--mono);
            font-size: 12px;
            letter-spacing: 0.14em;
            text-transform: uppercase;
        }
        .kicker i {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--emerald);
            box-shadow: 0 0 12px var(--emerald);
        }
        h1 {
            margin: 0;
            font-size: clamp(2.4rem, 6vw, 4.5rem);
            line-height: 1.05;
            letter-spacing: -0.04em;
            font-weight: 800;
        }
        h1 span { display: block; }
        h1 .accent {
            color: #bffff0;
            text-shadow: 0 0 24px rgba(46, 230, 166, 0.35);
        }
        .lede {
            margin-top: 18px;
            max-width: 640px;
            color: #c5ddd7;
            font-size: clamp(1rem, 2vw, 1.15rem);
        }
        .lede strong { color: #fff; font-weight: 700; }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            margin-top: 28px;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-height: 48px;
            padding: 12px 18px;
            border-radius: 12px;
            border: 1px solid transparent;
            text-decoration: none;
            font-weight: 700;
            font-size: 15px;
            cursor: pointer;
            font-family: inherit;
        }
        .btn-primary {
            background: linear-gradient(180deg, #7dffe4, var(--emerald-2));
            color: var(--ink);
            box-shadow: 0 0 24px rgba(46, 230, 166, 0.32);
        }
        .btn-primary:hover { filter: brightness(1.06); }
        .btn-ghost {
            background: rgba(8, 16, 22, 0.7);
            color: var(--text);
            border-color: var(--line-strong);
        }
        .btn-ghost:hover { box-shadow: 0 0 18px rgba(62, 224, 240, 0.18); }
        .btn-small { min-height: 40px; padding: 8px 14px; font-size: 14px; }

        .mock {
            position: relative;
            border: 1px solid var(--line-strong);
            border-radius: 18px;
            background:
                linear-gradient(180deg, rgba(62, 224, 240, 0.08), rgba(8, 16, 22, 0.2)),
                #081016;
            box-shadow: var(--shadow), 0 0 40px rgba(46, 230, 166, 0.08);
            padding: 18px;
        }
        .mock::before,
        .mock::after {
            content: "";
            position: absolute;
            width: 14px;
            height: 14px;
            border: 2px solid var(--emerald);
        }
        .mock::before { top: 8px; left: 8px; border-right: 0; border-bottom: 0; }
        .mock::after { right: 8px; bottom: 8px; border-left: 0; border-top: 0; }
        .mock-top {
            display: flex;
            justify-content: space-between;
            gap: 8px;
            color: var(--dim);
            font-family: var(--mono);
            font-size: 11px;
            letter-spacing: 0.08em;
        }
        .mock h2 {
            margin: 14px 0 8px;
            font-size: 16px;
        }
        .mock-row {
            display: flex;
            justify-content: space-between;
            gap: 12px;
            padding: 8px 0;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            font-size: 13px;
        }
        .mock-row span { color: var(--muted); }
        .mock-row b { font-weight: 700; text-align: right; }
        .mock-row .bad { color: var(--rose); }
        .mock-actions {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 8px;
            margin-top: 14px;
        }
        .mock-reject, .mock-confirm {
            display: grid;
            place-items: center;
            min-height: 40px;
            border-radius: 10px;
            font-size: 13px;
            font-weight: 700;
        }
        .mock-reject {
            color: var(--ink);
            background: var(--emerald);
            box-shadow: 0 0 16px rgba(46, 230, 166, 0.35);
        }
        .mock-confirm {
            color: var(--rose);
            border: 1px solid rgba(255, 93, 115, 0.45);
        }
        .mock-caption { margin-top: 12px; color: var(--dim); font-size: 12px; }

        main { padding-bottom: 40px; }
        section { scroll-margin-top: calc(var(--nav-h) + 16px); padding: 28px 0; }
        .section-head { margin-bottom: 18px; max-width: 760px; }
        .eyebrow {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 8px;
            margin: 0 0 8px;
            color: var(--cyan);
            font-family: var(--mono);
            font-size: 12px;
            letter-spacing: 0.12em;
        }
        .eyebrow b { color: var(--emerald); font-weight: 700; }
        h2 { margin: 0; font-size: clamp(1.5rem, 3vw, 2rem); letter-spacing: -0.03em; line-height: 1.2; }
        .sub { margin-top: 8px; color: var(--muted); }

        .panel {
            background: var(--card);
            border: 1px solid var(--line);
            border-radius: 20px;
            box-shadow: var(--shadow);
            padding: 22px;
        }

        .quiz-top, .bar-head, .filter-row {
            display: flex;
            justify-content: space-between;
            align-items: flex-end;
            gap: 12px;
            flex-wrap: wrap;
        }
        .timer {
            font-family: var(--mono);
            font-size: 28px;
            color: var(--emerald);
            text-shadow: 0 0 16px rgba(46, 230, 166, 0.45);
            letter-spacing: 0.06em;
        }
        .timer.is-expired { color: var(--amber); text-shadow: none; }
        .timer-note {
            margin: 10px 0 0;
            color: var(--amber);
            font-size: 13px;
        }
        .dots { display: flex; gap: 6px; margin: 14px 0; }
        .dots span {
            width: 28px;
            height: 4px;
            border-radius: 99px;
            background: rgba(255, 255, 255, 0.12);
        }
        .dots span.is-on { background: linear-gradient(90deg, var(--emerald), var(--cyan)); }
        .quiz-step h3, .faq-q span, .check-copy strong { font-weight: 700; }
        .quiz-step h3 { margin: 0 0 14px; font-size: 1.15rem; line-height: 1.45; }
        .options, .stack { display: grid; gap: 10px; }
        .option, .check-row, .faq-item, .scam-card, .fit-card, .warn-card, .info-card {
            border: 1px solid var(--line);
            background: rgba(5, 10, 14, 0.55);
            border-radius: 14px;
        }
        .option {
            width: 100%;
            text-align: left;
            color: var(--text);
            font: inherit;
            padding: 14px 16px;
            cursor: pointer;
        }
        .option:hover:not(:disabled) { border-color: var(--line-strong); }
        .option.is-correct { border-color: rgba(46, 230, 166, 0.7); background: rgba(46, 230, 166, 0.1); }
        .option.is-wrong { border-color: rgba(255, 93, 115, 0.7); background: rgba(255, 93, 115, 0.08); }
        .why {
            margin-top: 12px;
            padding: 12px 14px;
            border-radius: 12px;
            background: rgba(62, 224, 240, 0.08);
            color: #d7fffb;
            font-size: 14px;
        }
        .next { margin-top: 12px; }
        .quiz-result { text-align: left; padding-top: 8px; }
        .quiz-result h3 { margin: 0 0 8px; font-size: 1.6rem; }
        .score-good { color: var(--emerald); }
        .score-mid { color: var(--amber); }
        .score-bad { color: var(--rose); }

        .filters { display: flex; flex-wrap: wrap; gap: 8px; }
        .chip {
            min-height: 40px;
            padding: 8px 12px;
            border-radius: 999px;
            border: 1px solid var(--line);
            background: transparent;
            color: var(--muted);
            font: inherit;
            font-size: 13px;
            cursor: pointer;
        }
        .chip.is-active {
            color: var(--ink);
            background: linear-gradient(180deg, #7dffe4, var(--emerald-2));
            border-color: transparent;
            font-weight: 700;
        }
        .filter-count { color: var(--dim); font-family: var(--mono); font-size: 12px; }
        .card-grid, .fit-grid, .warn-grid, .split {
            display: grid;
            gap: 14px;
        }
        .card-grid, .warn-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
        .fit-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
        .split { grid-template-columns: 1fr 1fr; }
        .scam-card, .fit-card, .warn-card, .info-card { padding: 16px; }
        .scam-card:hover, .fit-card:hover { border-color: var(--line-strong); }
        .card-tags, .tag-row { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 10px; }
        .tag, .risk {
            font-family: var(--mono);
            font-size: 11px;
            letter-spacing: 0.04em;
            padding: 3px 8px;
            border-radius: 999px;
            border: 1px solid var(--line);
            color: var(--cyan);
        }
        .risk-high { color: var(--rose); border-color: rgba(255, 93, 115, 0.4); }
        .risk-mid { color: var(--amber); border-color: rgba(245, 193, 108, 0.4); }
        .scam-card h3, .fit-card h3, .warn-card h3, .info-card h3 {
            margin: 0 0 8px;
            font-size: 1.02rem;
        }
        .scam-card p, .fit-card p, .warn-card p, .info-card p, .check-copy small, .faq-a {
            color: var(--muted);
            font-size: 14px;
        }
        .defense { margin-top: 10px; color: #d9fff3 !important; }
        .empty {
            padding: 28px 8px;
            text-align: center;
            color: var(--muted);
        }

        .steps { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; margin-top: 14px; }
        .step-no {
            font-family: var(--mono);
            color: var(--emerald);
            font-size: 12px;
            letter-spacing: 0.08em;
        }
        .callout {
            margin-top: 14px;
            padding: 12px 14px;
            border-left: 3px solid var(--cyan);
            background: rgba(62, 224, 240, 0.06);
            color: #dffaf6;
            border-radius: 0 12px 12px 0;
        }
        ul.clean { margin: 10px 0 0; padding-left: 18px; color: var(--muted); }
        ul.clean li + li { margin-top: 6px; }

        .table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: 16px; }
        table { width: 100%; border-collapse: collapse; min-width: 720px; font-size: 14px; }
        th, td { padding: 14px 16px; text-align: left; vertical-align: top; border-bottom: 1px solid rgba(255, 255, 255, 0.06); }
        th {
            color: var(--dim);
            font-family: var(--mono);
            font-size: 11px;
            letter-spacing: 0.08em;
            font-weight: 700;
        }
        td:first-child { color: #fff; font-weight: 700; }

        .prompts { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 10px; margin: 16px 0; }
        .prompt {
            padding: 12px;
            border-radius: 12px;
            border: 1px dashed rgba(62, 224, 240, 0.35);
            background: rgba(62, 224, 240, 0.04);
        }
        .prompt b { display: block; margin-bottom: 4px; font-size: 13px; }
        .prompt span { color: var(--muted); font-size: 13px; }

        .bar-head { margin-bottom: 8px; }
        .bar {
            height: 8px;
            border-radius: 99px;
            background: rgba(255, 255, 255, 0.08);
            overflow: hidden;
        }
        .bar > span {
            display: block;
            height: 100%;
            width: 0;
            border-radius: inherit;
            background: linear-gradient(90deg, var(--emerald), var(--cyan));
            box-shadow: 0 0 12px rgba(46, 230, 166, 0.6);
        }
        .check-list { display: grid; gap: 10px; margin-top: 14px; }
        .check-row {
            display: flex;
            gap: 12px;
            align-items: flex-start;
            padding: 14px;
            cursor: pointer;
        }
        .check-row input {
            width: 1.15rem;
            height: 1.15rem;
            margin-top: 3px;
            accent-color: var(--emerald-2);
            flex: none;
        }
        .check-row:has(input:checked) {
            border-color: rgba(46, 230, 166, 0.55);
            background: rgba(46, 230, 166, 0.07);
        }
        .check-copy { display: grid; gap: 4px; }
        .check-copy small { display: block; }
        .toolbar { display: flex; justify-content: space-between; gap: 10px; align-items: center; flex-wrap: wrap; margin-top: 12px; }
        #clear-checks { margin-left: auto; }
        .is-hidden { display: none !important; }
        .quiz-step:not(.is-active) { display: none; }
        .done-note { color: var(--emerald); font-size: 14px; }

        .video-frame {
            position: relative;
            aspect-ratio: 16 / 9;
            background: #000;
            border-radius: 16px;
            overflow: hidden;
            border: 1px solid var(--line-strong);
        }
        .video-frame iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; }
        .video-note { margin: 10px 0 16px; color: var(--dim); font-size: 13px; }

        .faq-list { display: grid; gap: 10px; }
        .faq-q {
            width: 100%;
            display: flex;
            justify-content: space-between;
            gap: 16px;
            align-items: center;
            text-align: left;
            padding: 16px;
            border: 0;
            background: transparent;
            color: var(--text);
            font: inherit;
            font-weight: 700;
            cursor: pointer;
        }
        .faq-item { overflow: hidden; }
        .chevron {
            width: 10px;
            height: 10px;
            border-right: 2px solid var(--cyan);
            border-bottom: 2px solid var(--cyan);
            transform: rotate(45deg);
            flex: none;
            transition: transform 0.2s ease;
        }
        .faq-q[aria-expanded="true"] .chevron { transform: rotate(225deg); }
        .faq-a { padding: 0 16px 16px; }

        footer {
            border-top: 1px solid var(--line);
            padding: 28px 0 40px;
            color: var(--dim);
            font-size: 13px;
        }
        .footer-grid {
            display: flex;
            justify-content: space-between;
            gap: 18px;
            flex-wrap: wrap;
        }
        footer a { color: var(--muted); text-decoration: none; margin-right: 12px; }
        footer a:hover { color: var(--cyan); }
        .legal-nav {
            display: grid;
            gap: 12px;
            margin-bottom: 22px;
            padding-bottom: 22px;
            border-bottom: 1px solid var(--line);
        }
        .legal-nav div { display: flex; flex-wrap: wrap; gap: 8px 22px; }
        .legal-nav a { margin-right: 0; font-size: 14px; }
        .legal-nav a[aria-current="page"] { color: var(--cyan); }
        .legal { padding: 36px 0 12px; }
        .legal-doc { max-width: 760px; }
        .legal-doc h1 {
            margin: 12px 0 8px;
            font-size: clamp(32px, 5vw, 48px);
            line-height: 1.15;
            letter-spacing: -0.03em;
        }
        .legal-doc .updated { color: var(--dim); font-size: 13px; }
        .legal-doc p { margin: 14px 0 0; color: var(--muted); font-size: 16px; line-height: 1.75; }
        .legal-doc h2 { margin: 28px 0 0; font-size: 18px; line-height: 1.45; color: var(--text); }
        .legal-back { margin-bottom: 8px; }
        .noscript {
            margin: 12px auto;
            width: min(var(--max), calc(100% - 32px));
            padding: 12px;
            border: 1px solid var(--amber);
            border-radius: 12px;
            color: var(--amber);
        }

        @media (max-width: 1180px) {
            .nav { height: auto; min-height: var(--nav-h); position: sticky; }
            .nav-inner { position: relative; min-height: var(--nav-h); }
            .nav-toggle { display: inline-flex; align-items: center; justify-content: center; }
            .nav-links {
                display: none;
                position: absolute;
                top: 100%;
                left: -16px;
                right: -16px;
                flex-direction: column;
                align-items: stretch;
                padding: 8px 12px 14px;
                background: rgba(6, 10, 14, 0.98);
                border-bottom: 1px solid var(--line);
            }
            .nav-links.is-open { display: flex; }
            .nav-links a { padding: 12px; }
            .fit-grid { grid-template-columns: 1fr 1fr; }
        }
        @media (max-width: 860px) {
            .hero { padding-top: 36px; }
            .hero-grid, .split, .card-grid, .steps, .prompts { grid-template-columns: 1fr; }
            .warn-grid { grid-template-columns: 1fr; }
        }
        @media (max-width: 640px) {
            .wrap, .nav-inner { width: min(var(--max), calc(100% - 24px)); }
            .hero-actions, .hero-actions .btn { width: 100%; }
            .fit-grid { grid-template-columns: 1fr; }
            .panel { padding: 16px; }
            .brand small { display: none; }
            table { min-width: 640px; }
        }
        @media (prefers-reduced-motion: reduce) {
            html { scroll-behavior: auto; }
            .chevron { transition: none; }
        }
    
        html {
            background-color: #05080c;
            background-image:
                radial-gradient(ellipse 80% 50% at 10% -10%, rgba(46, 230, 166, 0.16), transparent 55%),
                radial-gradient(ellipse 60% 40% at 100% 0%, rgba(62, 224, 240, 0.12), transparent 50%),
                linear-gradient(rgba(46, 230, 166, 0.035) 1px, transparent 1px),
                linear-gradient(90deg, rgba(62, 224, 240, 0.035) 1px, transparent 1px);
            background-size: auto, auto, 52px 52px, 52px 52px;
        }
        body {
            width: min(480px, 100%);
            margin: 0 auto;
        }
        .nav { height: auto; min-height: var(--nav-h); position: sticky; }
        .nav-inner { position: relative; min-height: var(--nav-h); }
        .nav-toggle { display: inline-flex; align-items: center; justify-content: center; }
        .nav-links {
            display: none;
            position: absolute;
            top: 100%;
            left: -16px;
            right: -16px;
            flex-direction: column;
            align-items: stretch;
            padding: 8px 12px 14px;
            background: rgba(6, 10, 14, 0.98);
            border-bottom: 1px solid var(--line);
        }
        .nav-links.is-open { display: flex; }
        .nav-links a { padding: 12px; }
        .hero { padding-top: 36px; }
        .hero-grid, .split, .card-grid, .steps, .prompts, .warn-grid, .fit-grid { grid-template-columns: 1fr; }
        .wrap, .nav-inner { width: min(var(--max), calc(100% - 24px)); }
        .hero-actions, .hero-actions .btn { width: 100%; }
        .panel { padding: 16px; }
        .brand small { display: none; }
        table { min-width: 640px; }